US5908116A - Mail accumulating device - Google Patents

Mail accumulating device Download PDF

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Publication number
US5908116A
US5908116A US08/850,380 US85038097A US5908116A US 5908116 A US5908116 A US 5908116A US 85038097 A US85038097 A US 85038097A US 5908116 A US5908116 A US 5908116A
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United States
Prior art keywords
conveying
mail items
output
belt
conveyor belt
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Expired - Lifetime
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US08/850,380
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English (en)
Inventor
Mauro Levaro
Andrea Faeti
Michele Scarnera
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Leonardo SpA
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Finmeccanica SpA
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Assigned to FINMECCANICA S.P.A. reassignment FINMECCANICA S.P.A. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: FAETI, ANDREA, LEVARO, MAURO, SCARNERA, MICHELE
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/66—Advancing articles in overlapping streams
    • B65H29/6645—Advancing articles in overlapping streams buffering an overlapping stream of articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
    • B07C1/00—Measures preceding sorting according to destination
    • B07C1/02—Forming articles into a stream; Arranging articles in a stream, e.g. spacing, orientating
    • B07C1/025—Devices for the temporary stacking of objects provided with a stacking and destacking device (interstack device)
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S209/00—Classifying, separating, and assorting solids
    • Y10S209/90—Sorting flat-type mail
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S209/00—Classifying, separating, and assorting solids
    • Y10S209/923—Feed through including at least one endless conveyor

Definitions

  • the present invention relates to a mail accumulating device.
  • Mail sorting systems are known to comprise automatic reading devices supplied with a stream of mail items (letters and postcards), and which provide for automatically reading the address on the item, extracting any items with addresses not recognizable automatically, and supplying them to an accumulating device where the items are stored pending manual recognition of the address.
  • Known accumulating devices which normally store the items in containers into which the items are fed successively, are not very flexible, at times involve a certain amount of manual operating (e.g. to transport and/or unload the containers), and therefore provide for a poor degree of efficiency.
  • FIG. 1 shows an accumulating device in accordance with the teachings of the present invention
  • FIG. 2A shows a larger-scale view of a first portion of the FIG. 1 accumulating device
  • FIG. 2B shows a magnified view of the distance formed between adjacent mail items during movement through a sorting unit in the accumulating device
  • FIG. 2C shows a magnified view of the distance formed between adjacent mail items during movement along an intermediate section of the accumulating device
  • FIG. 3 shows a larger-scale view of a second portion of the FIG. 1 accumulating device
  • FIG. 4 shows a detailed view of a single sorting unit of the FIG. 1 accumulating device
  • FIG. 5 shows the FIG. 1 accumulating device in schematic form.
  • Number 1 in FIG. 1 indicates a mail sorting system comprising a mail accumulating device 5 supplied with mail items from an automatic reading device 6 (shown schematically) in turn supplied with a stream Fi of mail items 7 (letters and postcards), and which provides for automatically reading the handwritten or typed address on the item.
  • Automatic reading device 6 generates at the output a first stream Fr of items with automatically recognized addresses; and a second stream Fnr of items bearing addresses which have failed to be recognized automatically, and which is conveniently supplied to accumulating device 5 where the items are stored pending manual recognition of the address.
  • Accumulating device 5 and automatic reading device 6 are controlled by an electronic control unit 8 (shown schematically).
  • Accumulating device 5 receives three separate streams F1, F2, F3 of mail items forming part of stream Fnr, and generates at the output a stream Fu of overlapping mail items, which is supplied, for example, to a separating device 9 (shown schematically) connected to accumulating device 5 by a conveyor belt system 10 (shown schematically).
  • the accumulating device comprises an input section 11 receiving streams F1, F2, F3; an output section 12 generating stream Fu; and an intermediate accumulating section 14 interposed between input section 11 and output section 12.
  • Input section 11 comprises a vertical metal supporting structure 16 (shown schematically in FIG. 1) supporting three superimposed stream forming devices 18, 19, 20 supplied respectively with streams F1, F2, F3. More specifically, stream F1 travels along a horizontal portion 22 (FIG. 2A) of input section 11, and is then diverted downwards towards forming device 18 by a pulley 24 supporting two superimposed belts (not shown) for retaining the items in stream F1. Stream F1 is thus supplied to a sorting unit 26 forming part of forming device 18, and which directs the items in stream F1 to first, second, third and fourth stream forming units 27a, 27b, 27c, 27d.
  • a sorting unit 26 forming part of forming device 18, and which directs the items in stream F1 to first, second, third and fourth stream forming units 27a, 27b, 27c, 27d.
  • Sorting unit 26 is of known type, and comprises first, second, third and fourth blade selecting devices 30a, 30b, 30c, 30d connected respectively to forming units 27a, 27b, 27c, 27d and aligned in a vertical direction parallel to stream F1 inside sorting unit 26.
  • Each blade selecting device 30a, 30b, 30c, 30d is moved by a respective electric actuator (not shown) between a first activated position, to intercept and feed the items in stream F1 to a respective forming unit 27a, 27b, 27c, 27, and a second release position enabling the items to travel on to the next selecting device.
  • Each blade selecting device 30a, 30b, 30c, 30d cooperates with a pair of powered roller 31a, 31b located to the side of the blade selecting device, between this and the respective forming unit.
  • each stream forming unit 27 is fitted to a substantially rectangular metal plate 32, and comprises a first belt 35 defining an endless path extending between two pulleys 37, 38 located close to adjacent corners of plate 32 and cooperating with the inner surface of belt 35.
  • Belt 35 also cooperates with three tensioning pulleys 39, 40, 41 located along a first long side 32a of late 32, and which press on the outer and inner surfaces of belt 35 to form a substantially straight portion 42 of belt 35 extending between pulley 37 and pulley 41.
  • Sorting unit 26 also comprises a second belt 44 defining an endless path, and the inner surface of which cooperates with two pulleys 46, 47 located along a second long side 32b of plate 32, and with a third pulley 53 fitted to a first end of an arm 55, the second end of which is hinged to plate 32.
  • Pulleys 46, 47 and 53 are substantially located at the vertices of an isosceles triangle, with pulley 53 adjacent to straight portion 42 of belt 35.
  • the second belt 44 also cooperates with tensioning pulleys 58, 59 located respectively on the second end of arm 55 and close to pulley 47, and which press on the outer surface of belt 44.
  • Belt 44 defines, among other things, a straight portion 61 extending between pulleys 46 and 53 and terminating at a point Z at which belt 44 contacts straight portion 42, and which defines the input of forming unit 27.
  • Belts 35 and 44 are operated by respective drive devices 62a, 62b (shown schematically) controlled by electronic unit 8, and which provide for moving belts 35 and 44 as described later on.
  • Each forming unit 27 also comprises a first optoelectronic sensor 63, in turn comprising a photoemitting device (not shown) and a photoreceiving device (not shown) defining an optical path 65, which extends close to the point of contact Z of belts 35 and 44, and is interrupted by the entry of a mail item into forming unit 27.
  • Each forming unit also comprises an output 68 defined by an end portion of belt 35 close to pulley 38.
  • Forming devices 19 and 20 are structured in exactly the same way as forming device 18 described above, except that devices 19 and 20 comprise three sorting units 26 and three forming units 27 as opposed to four, and each sorting unit 26 comprises three blade selecting devices 30.
  • output 68 of each forming unit 27 of forming device 18 communicates with the input 71 of a first straight conveyor belt 73 forming part of accumulating section 14 and extending between two pulleys 76, 77, at least one of which is a drive pulley operated by drive means 80 controlled by electronic unit 8.
  • Pulley 76 is located adjacent to and below pulley 38, so that the mail items coming off belt 35 are deposited on to belt 73; and belt 73 is moved by drive means 80 towards the output section in discrete steps S2 of predetermined length (e.g. 5 mm) and at constant speed (see FIG. 2C).
  • belt 73 comprises an output 82 communicating with the input 86 of a second straight conveyor belt 86 forming part of accumulating section 14 and extending between two pulleys 87, 88, at least one of which is a drive pulley operated by respective drive means (not shown) controlled by electronic unit 8.
  • Pulley 87 is located adjacent to pulley 77, so that the mail items coming off belt 73 are deposited on to belt 86; and belt 86 is moved (in the same direction as belt 73) by the drive means (not shown) in steps S2 of predetermined length and synchronized with the steps of belt 73.
  • Belt 86 comprises an output 90 communicating with the input 91 of a third straight conveyor belt 93 forming part of accumulating section 14 and extending between two pulleys 94, 95, at least one of which is a drive pulley operated by respective drive means (not shown) controlled by electronic unit 8.
  • Pulley 94 is located adjacent to pulley 88, so that the mail items coming off belt 86 are deposited on to belt 93; and belt 93 is moved (in the same direction as belts 73 and 86) by the drive means (not shown) in steps S2 of predetermined length and synchronized with the steps of belts 73 and 86.
  • forming units 27 of forming devices 19 and 20 also communicate with successive adjacent first, second and third belts structured and operating in exactly the same way as belts 73, 86 and 93.
  • forming units 27 of forming device 19 (FIG. 2) cooperate with respective straight auxiliary belts 97, each interposed between output 68 of the forming unit and the input of first conveyor belt 73; and, similarly, forming units 27 of forming device 20 (FIG. 2A) cooperate with respective straight auxiliary belts 98, each interposed between output 68 of the forming unit and the input of first conveyor belt 73.
  • Auxiliary belts 97 and 98 move in successive steps S2 in time with the first, second and third conveyor belts (see FIG. 2C).
  • each belt 93 defines an output 102 communicating with the input 104 of a conveying device 106, which, among other things, comprises a rectangular chute-like blade 109 projecting from a vertical wall 111 of output section 12, and comprising a first top end portion 109a adjacent to pulley 95, and a second bottom end portion 109b.
  • Blade 109 cooperates with a powered conveyor belt 110, which rests on the upper face of blade 109, from portion 109a to portion 109b, to define a conveying portion 110a, which terminates as belt 110 rotates about a pulley 110b adjacent to bottom end portion 109b.
  • belt 110 is also supported on a number of tensioning pulleys located beneath blade 109.
  • Conveying device 106 also comprises a pressing device 112, which in turn comprises a straight arm 114 having a first end portion connected to an elastic system (not shown) fitted to wall 111, and a second end portion fitted with an idle pressure roller 116, which rests on an initial portion of belt 110 close to top end portion 109a.
  • Conveying device 106 also comprises an end guide device 118 in turn comprising a belt 119 extending along an endless path defined by a number of pulleys 120. More specifically, belt 119 defines a straight portion 122 extending between a pulley 120 facing blade 109, and a point at which belt 119 contacts belt 110 close to bottom end portion 109b.
  • the end guide device also comprises a tensioning device 124, in turn comprising a straight arm 125 having a first end portion connected to an elastic system (not shown) fitted to wall 111, and a second end portion fitted with an idle roller 120a for pressing belt 119 on to belt 110.
  • a tensioning device 124 in turn comprising a straight arm 125 having a first end portion connected to an elastic system (not shown) fitted to wall 111, and a second end portion fitted with an idle roller 120a for pressing belt 119 on to belt 110.
  • Conveying devices 106 cooperate with a transportation device comprising a conveying belt 129 extending along a substantially rectangular endless path comprising a straight vertical portion 129a extending adjacent to all the bottom end portions 109b of blades 109, between a top pulley 131 and a bottom pulley 132.
  • Belt 129 is moved downwards, i.e.
  • tensioning devices 135 located inside the rectangular perimeter of belt 129, and each comprising a straight arm 136 having a first end portion connected to an elastic device 136a, and a second end portion fitted with an idle roller 137 cooperating with an inner portion of belt 129 to push belt 129 towards belt 110 rotating about pulley 110b.
  • Conveyor belt system 10 defines a path (curved in the FIG. 1 embodiment, but which may also be straight) of a length L at least equal to the length l of first straight conveyor belt 73 (L ⁇ 1).
  • the mail items in each of streams F1, F2, F3, e.g. stream F1 are fed to a sorting unit 26 of a forming device, e.g. forming device 18.
  • a forming device e.g. forming device 18.
  • the mail items are therefore fed to the first selecting device, which, in said first position, feeds the items into forming unit 27a. If the selecting device is set to the second position, the mail items are fed to the next selecting device 30b, in which the above operations are repeated to feed the items into forming unit 27b or to the next selecting device.
  • the last selecting device 30d acts as a fixed guide, but which anyway provides for feeding the mail items into the adjacent forming unit 27d.
  • the mail item When fed to a forming unit 27, the mail item slides along a lateral wall of the selecting device to rollers 31a, 31b, which grip the item and feed it to input Z of forming unit 27.
  • the mail item travels along a parabolic trajectory, which intersects optical path 65 and terminates when the leading edge of the item is inserted between belts 35 and 44 with a small portion of the item beneath pulley 53.
  • the interruption of optical path 65 is detected by electronic control unit 8, which activates drive devices 62a, 62b so that belts 35 and 44 move one step S1 of predetermined length, e.g. 10 mm as depicted in FIG. 2B, in the same direction and at constant speed, and the first item fed into forming unit 27 is positioned between belts 35 and 44 and fed by a length S1 towards output 68.
  • the above operations are repeated, so that the first item, already positioned between belts 35 and 44, is fed further towards output 68 by a distance substantially equal to S1, and the second item is superimposed on the first with its leading edge separated from the leading edge of the first item by a distance substantially equal to S1.
  • the above operations are repeated for all the items fed into unit 27, so as to form a group Ibs of overlapping items aligned in a straight direction and resting on straight portion 42, and which gets longer and moves towards output 68 as further items are fed into unit 27.
  • groups Ibs also travel along auxiliary belts 97 and 98 between forming units 27 and respective first belts 73.
  • Groups Ibs therefore travels along first belt 73 on to second belt 86, and from thereon to third belt 93, and engagement of belts 73, 86, 93 is detected by optical sensors (not shown) located at opposite ends of the belts.
  • Belts 73, 86, 93 therefore act as an accumulating unit for housing the group Ibs of overlapping items formed by unit 27 and expelled from output 68; and the group Ibs formed in unit 27 gets longer as further items are fed into forming unit 27, and moves towards output 102 of the last belt (the third in the example shown).
  • group Ibs As it is moved along by belt 110, group Ibs is engaged by pressure roller 116 of pressing device 112 to hold the items down; and, at the end of belt 110, group Ibs is fed beneath belt 119, which pushes the items towards vertical portion 129a where group Ibs makes a sharp turn and is fed vertically downwards by belt 12.
  • group Ibs When unloaded off belt 129, group Ibs is fed on to conveyor belt system 10 to form the output stream Fu generated by accumulating device 5.
  • first belt 73 which, as stated, is of a length l equal to or less than the length of system 10, has definitely been cleared.
  • Device 5 therefore requires no manual operation, by virtue of conveying the mail items, forming groups Ibs of overlapping items, storing and conveying groups Ibs along intermediate section 14, and unloading groups Ibs fully automatically, and is therefore highly flexible, and provides for a high degree of efficiency.
  • the accumulating device may comprise a scanning device 140 (shown schematically) located along horizontal portion 22 to measure (in known manner, e.g. by means of laser techniques) the Dop thickness of individual mail items 7 supplied to forming device 18; and the Dop thickness value may conveniently be supplied to electronic control unit 8 to so control drive devices 62a, 62b as to regulate step S1 according to the measured Dop thickness, an so obtain a group Ibs of substantially constant thickness.
  • a scanning device 140 shown schematically located along horizontal portion 22 to measure (in known manner, e.g. by means of laser techniques) the Dop thickness of individual mail items 7 supplied to forming device 18; and the Dop thickness value may conveniently be supplied to electronic control unit 8 to so control drive devices 62a, 62b as to regulate step S1 according to the measured Dop thickness, an so obtain a group Ibs of substantially constant thickness.
  • output section 12 may comprise two outputs to increase the number of mail items unloaded per unit of time off accumulating device 5.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sorting Of Articles (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
  • Container Filling Or Packaging Operations (AREA)
US08/850,380 1996-05-03 1997-05-02 Mail accumulating device Expired - Lifetime US5908116A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITTO96A0358 1996-05-03
IT96TO000358A IT1285082B1 (it) 1996-05-03 1996-05-03 Dispositivo di accumulo per oggetti postali.

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US5908116A true US5908116A (en) 1999-06-01

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EP (1) EP0804975B1 (it)
JP (1) JPH1071368A (it)
DE (1) DE69716990T2 (it)
IT (1) IT1285082B1 (it)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6003859A (en) * 1996-07-19 1999-12-21 Ferag Ag Apparatus for supplying printed products to processing stations
US6151037A (en) * 1998-01-08 2000-11-21 Zebra Technologies Corporation Printing apparatus
US6366828B1 (en) * 1997-12-17 2002-04-02 Elsag Spa Method for collecting and transporting groups of partly superimposed postal objects
US6536191B1 (en) * 1999-06-28 2003-03-25 Bell & Howell Mail And Messaging Technologies Company Method and apparatus for high speed envelope traying
US20070273086A1 (en) * 2006-05-26 2007-11-29 Pitney Bowes Incorporated Method for optimally loading objects into storage/transport containers
US20090145819A1 (en) * 2007-12-05 2009-06-11 Siemens Aktiengesellschaft Sorting system and method for flat items of mail
US20120179291A1 (en) * 2010-10-06 2012-07-12 Selex Elsag S.P.A. Automated letter movement system alms
US9849487B2 (en) * 2014-11-13 2017-12-26 United States Postal Service System and method of sorting and sequencing items
US10682672B2 (en) 2016-05-06 2020-06-16 United States Postal Service Systems and methods for sorting residual items
US10974283B2 (en) 2017-10-05 2021-04-13 United States Postal Service System and method of sorting and sequencing items

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007057497A1 (de) * 2007-11-29 2009-06-10 Siemens Ag Verfahren und Vorrichtung zum Zusammenführen von zwei Strömen von Gegenständen
EP2366462B1 (en) 2010-03-19 2015-10-14 SELEX ES S.p.A. Method and device for sorting postal objects
ITTO20110851A1 (it) * 2011-09-23 2013-03-24 Selex Elsag Spa Metodo e dispositivo per la movimentazione e fusione di due o piu' gruppi di oggetti postali parzialmente sovrapposti (shingled)

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US4161244A (en) * 1978-03-31 1979-07-17 Burroughs Corporation Mail buffer feeder system
US4273326A (en) * 1978-12-14 1981-06-16 Norfin, Inc. Collator
FR2650767A1 (fr) * 1989-08-08 1991-02-15 Rougier Yann Dispositif d'indexation d'enveloppes de lettres ou objets plats analogues
EP0429118A1 (en) * 1989-11-17 1991-05-29 Koninklijke KPN N.V. Buffer system for the temporary storage of flat objects such as letters, and buffer for use in said buffer system
US5095684A (en) * 1990-10-31 1992-03-17 Food Machinery Sales, Inc. On edge cookie loader
US5119954A (en) * 1990-03-29 1992-06-09 Bell & Howell Company Multi-pass sorting machine
EP0552778A2 (en) * 1992-01-22 1993-07-28 ELSAG BAILEY S.p.A. A post-sorting machine with holding line
US5433325A (en) * 1993-11-23 1995-07-18 Finmeccanica S.P.A. Mail accumulating device

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4161244A (en) * 1978-03-31 1979-07-17 Burroughs Corporation Mail buffer feeder system
US4273326A (en) * 1978-12-14 1981-06-16 Norfin, Inc. Collator
FR2650767A1 (fr) * 1989-08-08 1991-02-15 Rougier Yann Dispositif d'indexation d'enveloppes de lettres ou objets plats analogues
EP0429118A1 (en) * 1989-11-17 1991-05-29 Koninklijke KPN N.V. Buffer system for the temporary storage of flat objects such as letters, and buffer for use in said buffer system
US5119954A (en) * 1990-03-29 1992-06-09 Bell & Howell Company Multi-pass sorting machine
US5095684A (en) * 1990-10-31 1992-03-17 Food Machinery Sales, Inc. On edge cookie loader
EP0552778A2 (en) * 1992-01-22 1993-07-28 ELSAG BAILEY S.p.A. A post-sorting machine with holding line
US5433325A (en) * 1993-11-23 1995-07-18 Finmeccanica S.P.A. Mail accumulating device

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6003859A (en) * 1996-07-19 1999-12-21 Ferag Ag Apparatus for supplying printed products to processing stations
US6366828B1 (en) * 1997-12-17 2002-04-02 Elsag Spa Method for collecting and transporting groups of partly superimposed postal objects
US6151037A (en) * 1998-01-08 2000-11-21 Zebra Technologies Corporation Printing apparatus
US6536191B1 (en) * 1999-06-28 2003-03-25 Bell & Howell Mail And Messaging Technologies Company Method and apparatus for high speed envelope traying
US20070273086A1 (en) * 2006-05-26 2007-11-29 Pitney Bowes Incorporated Method for optimally loading objects into storage/transport containers
US8556260B2 (en) * 2006-05-26 2013-10-15 Lockheed Martin Corporation Method for optimally loading objects into storage/transport containers
US20090145819A1 (en) * 2007-12-05 2009-06-11 Siemens Aktiengesellschaft Sorting system and method for flat items of mail
US8796576B2 (en) * 2007-12-05 2014-08-05 Siemens Aktiengesellschaft Sorting system and method for flat items of mail
US20120179291A1 (en) * 2010-10-06 2012-07-12 Selex Elsag S.P.A. Automated letter movement system alms
US8880215B2 (en) * 2010-10-06 2014-11-04 Seleg Elsag S.p.A. Automated letter movement system ALMS
US9849487B2 (en) * 2014-11-13 2017-12-26 United States Postal Service System and method of sorting and sequencing items
US10220416B2 (en) 2014-11-13 2019-03-05 United States Postal Service System and method of sorting and sequencing items
US10668505B2 (en) 2014-11-13 2020-06-02 United States Postal Service System and method of sorting and sequencing items
US11344918B2 (en) 2014-11-13 2022-05-31 United States Postal Service System and method of sorting and sequencing items
US11890649B2 (en) 2014-11-13 2024-02-06 United States Postal Service System and method of sorting and sequencing items
US10682672B2 (en) 2016-05-06 2020-06-16 United States Postal Service Systems and methods for sorting residual items
US10717112B2 (en) 2016-05-06 2020-07-21 United States Postal Service Method for sorting residual letters and flats to carrier route segments using two passes on a machine with intermediate staging
US11338329B2 (en) 2016-05-06 2022-05-24 United States Postal Service Systems and methods for sorting residual items
US11833547B2 (en) 2016-05-06 2023-12-05 United States Postal Service Systems and methods for sorting residual items
US10974283B2 (en) 2017-10-05 2021-04-13 United States Postal Service System and method of sorting and sequencing items
US11465181B2 (en) 2017-10-05 2022-10-11 United States Postal Service System and method of sorting and sequencing items
US11465180B2 (en) 2017-10-05 2022-10-11 United States Postal Service System and method of sorting and sequencing items
US12023713B2 (en) 2017-10-05 2024-07-02 United States Postal Service System and method of sorting and sequencing items

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Publication number Publication date
ITTO960358A1 (it) 1997-11-03
JPH1071368A (ja) 1998-03-17
ITTO960358A0 (it) 1996-05-03
DE69716990T2 (de) 2003-07-24
IT1285082B1 (it) 1998-06-03
EP0804975A2 (en) 1997-11-05
DE69716990D1 (de) 2002-12-19
EP0804975A3 (en) 1998-10-28
EP0804975B1 (en) 2002-11-13

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